Protecting individual privacy from government intrusion is older than American democracy. In 1604, the attorney general of England, Sir Edward Coke, ruled that a man’s house is his castle. This was the official declaration that a homeowner could protect himself and his privacy from the king’s agents. That…

What state should you move to based on your personality? What character on “Downton Abbey” would you be? What breed of dog is best for you? Some enormous percentage of Facebook’s 2.13 billion users must have seen Facebook friends sharing results of various online quizzes. They are sometimes…